A glass powder spraying device of a matrix multi-jet array

Abstract

The utility model discloses a kind of glass powder spraying devices of row-column type multiple spray head array, for the problems of uneven powder spraying, powder waste, glass displacement and inconvenient height adjustment of existing device, the device integrates rack, lifting adjusting mechanism, powder spraying mechanism, sealed dustproof powder spraying cabin, powder circulating mechanism and transmission mechanism. Efficient uniform powder spraying is realized by row-column type multiple spray head array, lifting adjusting mechanism (servo drive screw) is adapted to different thickness glass;Powder scraping assembly in sealed cabin levels coating, and powder recycling system (cyclone separator) recycles surplus powder for reuse;Auxiliary compression module (elastic wheel) prevents glass displacement. With the advantages of high efficiency, uniform coating, environmental protection and self-adaptation, it is suitable for powder spraying process of photovoltaic, electronic glass and the like.

Description

Technical Field

[0001] This utility model relates to the field of glass deep processing technology, and in particular to a glass powder spraying device with a row and column multi-nozzle array. Background Technology

[0002] In the glass manufacturing industry, especially in the deep processing of photovoltaic glass, electronic glass, or architectural glass, surface powder coating is a crucial step. Its function is typically to uniformly cover the glass surface with a layer of powder (such as silica, alumina, etc.), forming a protective layer or functional coating to improve the glass's weather resistance, insulation, or adhesion to other materials. However, existing glass powder coating equipment still suffers from the following prominent problems in practical applications: First, insufficient powder coating efficiency and uniformity. Traditional equipment often uses a single nozzle or fixed array nozzles, resulting in limited powder coverage area. Multiple passes are required to meet thickness requirements, leading to low production efficiency. Furthermore, the fixed distance between the nozzle and the glass makes it difficult to adapt to glass of different thicknesses, easily causing uneven coating thickness or localized areas of excessive or insufficient thickness due to spacing deviations. Second, serious powder waste and environmental pollution. Excessive powder dispersion is easily generated during the powder coating process. Existing equipment lacks an efficient recovery system, which not only wastes raw materials and increases production costs but may also lead to dust pollution in the workshop, endangering the health of operators and failing to meet environmental protection requirements. Third, poor glass transport stability. During the conveying process, glass is prone to displacement due to vibration of the conveyor rollers or insufficient friction, resulting in powder coating misalignment and difficulty in ensuring coating consistency. Although some devices are equipped with clamping structures, the clamping force is not adjustable or the material is too hard, easily scratching the glass surface and affecting the quality of the finished product. Fourth, the equipment has low adjustment flexibility. The vertical distance between the powder coating chamber and the glass mostly relies on manual adjustment, which is time-consuming, labor-intensive, and lacks precision. It cannot quickly respond to the production needs of different glass specifications, thus restricting the automation and intelligent upgrading of the production line.

[0003] Therefore, there is an urgent need for a high-efficiency, precise, environmentally friendly and adaptable glass powder coating device to solve the above-mentioned technical pain points and promote process improvement and efficiency enhancement in the glass deep processing industry. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a glass powder spraying device with a row and column multi-nozzle array.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a glass powder coating device with a row-and-column multi-nozzle array, comprising a frame, a lifting and adjusting mechanism, a powder coating mechanism, a dustproof powder coating chamber, a powder circulation mechanism, and a conveying mechanism. The conveying mechanism is located at the bottom of the frame and is used to transport the glass to be powder coated. The lifting and adjusting mechanism is fixed to the top of the frame, and its output end is connected to the dustproof powder coating chamber for adjusting the vertical distance between the dustproof powder coating chamber and the glass. The dustproof powder coating chamber is a sealed box structure, integrating the powder coating mechanism and an auxiliary pressing module inside, with its top two sides fixedly connected to the lifting and adjusting mechanism. The powder circulation mechanism is located at the bottom of the dustproof powder coating chamber and is used to recover excess powder and recycle it through separation.

[0006] As a preferred embodiment of this utility model, the lifting adjustment mechanism includes a horizontal guide rail base fixed to the top of the frame, a horizontal slider slidably connected to the top surface of the horizontal guide rail base, a lifting mounting seat fixed to the top of the horizontal slider, a first servo motor fixed to one end of the lifting mounting seat, a bidirectional lead screw coaxially connected to the output shaft of the first servo motor, a lead screw nut threaded onto the bidirectional lead screw, a vertical lifting arm fixed to the bottom of the lead screw nut, vertical guide columns parallel to both sides of the vertical lifting arm, and a cabin connecting block fixed to the bottom of the vertical lifting arm; the upper and lower ends of the vertical guide columns are respectively fixed to the lifting mounting seat and the top of the frame; the cabin connecting block is bolted to the top of the dustproof powder spraying cabin; the first servo motor drives the bidirectional lead screw to rotate, and through the guiding cooperation between the lead screw nut and the vertical guide column, drives the vertical lifting arm to rise and fall vertically, thereby adjusting the height of the dustproof powder spraying cabin through the cabin connecting block.

[0007] As a preferred embodiment of this utility model, the dustproof powder spraying chamber includes a sealed box, a glass inlet groove at the inlet end of the sealed box, a glass outlet groove at the outlet end of the sealed box, an inverted conical powder collection groove fixed to the bottom of the sealed box, and a powder scraping assembly inclinedly arranged on the inner wall of the outlet end of the sealed box; the bottom of the inverted conical powder collection groove is connected to the powder circulation mechanism; the powder scraping assembly includes a powder scraping plate bracket bolted to the inner wall of the outlet end of the sealed box and a wear-resistant powder scraping plate fixed to the powder scraping plate bracket, the wear-resistant powder scraping plate being arranged perpendicular to the glass conveying direction.

[0008] As a preferred embodiment of this utility model, the powder spraying mechanism includes a multi-nozzle array nozzle fixed to the inner wall of the inlet end of the sealed box, a nozzle mounting plate welded to the back of the multi-nozzle array nozzle, a rotating dispersion module fixed to the bottom of the sealed box, two sets of auxiliary pressing modules symmetrically arranged in the sealed box along the glass conveying direction, a powder hopper fixed to the bottom of the sealed box, a powder conveying pump connected to the powder outlet of the powder hopper and the powder inlet of the multi-nozzle array nozzle, and a powder guiding hose connected to the powder outlet of the multi-nozzle array nozzle and the powder inlet of the rotating dispersion module.

[0009] As a preferred technical solution of this utility model, the auxiliary pressing module includes a pressing wheel bracket fixed to the bottom of the sealed box, a pressing wheel shaft rotatably connected to the pressing wheel bracket, and an elastic pressing wheel sleeved on the pressing wheel shaft; the outer surface of the elastic pressing wheel is covered with a polyurethane anti-slip layer, and two sets are symmetrically arranged in front and behind along the glass conveying direction to press the glass and prevent it from shifting during the conveying process.

[0010] As a preferred embodiment of this utility model, the powder recycling mechanism includes an inverted funnel-shaped recycling hopper fixed directly above the bottom of the inverted conical powder collection tank, a cyclone separator fixed to the top of the recycling hopper, a recycling pipe connected to the powder outlet of the cyclone separator, and a powder box fixed to the end of the recycling pipe; the inner wall of the recycling hopper is coated with a smooth polytetrafluoroethylene coating, the inlet of the cyclone separator is connected to the bottom of the recycling hopper, and the outlet transports the separated clean powder to the powder box for recycling through the recycling pipe.

[0011] As a preferred embodiment of this utility model, the transmission mechanism includes a transmission belt support fixed to the bottom of the frame, a plurality of parallel transmission rollers rotatably connected to the transmission belt support, and a transmission motor fixed to one side of the transmission belt support; the output shaft of the transmission motor is coaxially connected to one of the transmission rollers through a coupling, driving the transmission roller to rotate to transport glass.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. High powder spraying efficiency and good coating uniformity: The row and column multi-nozzle array design greatly increases the powder spraying coverage area per unit time, which can improve efficiency by 3-5 times compared with traditional single-nozzle devices; the rotary dispersion module pre-disperses the powder to avoid agglomeration, and the auxiliary pressing module fixes the glass position to ensure the stability of the powder spraying process, which is significantly better than the existing process. 2. High powder recycling rate, environmental protection and energy saving: Through the synergistic effect of the inverted cone-shaped powder collection tank, cyclone separator and recycling pipe, more than 90% of the excess powder can be recycled and reused, reducing raw material waste; the sealed powder spraying chamber combined with the recycling hopper with smooth polytetrafluoroethylene coating effectively inhibits dust overflow, significantly improves the air quality in the workshop, and meets the requirements of green production. 3. Strong adaptive adjustment capability: The lifting adjustment mechanism is driven by a servo motor to cooperate with the bidirectional lead screw and vertical guide column, which can realize precise adjustment of the powder spraying chamber height (accuracy ±0.1mm), adapt to glass of different thicknesses from 0.5-12mm, without manual intervention, shortening changeover time and improving production line flexibility; 4. High glass transport stability: The transport mechanism adopts parallel transport rollers for synchronous drive, combined with the flexible clamping design of elastic clamping rollers (polyurethane anti-slip layer), which not only avoids glass displacement, but also prevents hard contact from scratching the surface; the clamping rollers are symmetrically arranged front and back to ensure uniform force on the glass and further improve the consistency of the coating. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a partial enlarged view of the present invention; Figure 4 This is a side view of the present invention; Figure 5 This is a top view of the present invention; Figure 6 This is an internal schematic diagram of the powder spraying mechanism in this utility model; In the diagram: 1. Frame; 2. Lifting and adjusting mechanism; 3. Powder spraying mechanism; 4. Dustproof powder spraying chamber; 5. Powder circulation mechanism; 6. Conveying mechanism; 21. Horizontal guide rail base; 22. Horizontal slider; 23. Lifting mounting base; 24. First servo motor; 25. Bidirectional lead screw; 26. Lead screw nut; 27. Vertical lifting arm; 28. Vertical guide column; 29. ​​Chamber connecting block; 31. Multi-nozzle array nozzle; 32. Nozzle mounting plate; 33. Rotary dispersion module; 34. Auxiliary clamping module; 35. Powder silo; 36. Powder conveying pump; 37. Powder guiding hose; 41. Sealed housing; 42. Glass inlet; 43. Glass outlet; 44. Powder collection tank; 45. Powder scraper assembly; 51. Recovery hopper; 52. Cyclone separator; 53. Recovery pipe; 54. Powder box; 61. Conveyor belt support; 62. Conveyor roller; 63. Conveyor motor; 341. Pressure roller support; 342. Pressure roller shaft; 343. Elastic pressure roller; 451. Powder scraper support; 452. Wear-resistant powder scraper. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] In the attached diagram, all identical reference numerals refer to the same components.

[0016] Example 1: Standard Glass Powder Coating Device like Figure 1-6 As shown, this embodiment is applicable to powder coating operations on glass with a conventional thickness of 3-8mm. The modules are connected and operate as follows: The frame 1 is welded from rectangular steel pipes and serves as the support foundation for the entire device. The lifting and adjusting mechanism 2 is fixed to the top of the frame 1: the horizontal guide rail base 21 is fixed to the top surface of the frame 1 by bolts, and its top surface is slidably connected to the horizontal slider 22; the top of the horizontal slider 22 is fixed to the lifting mounting seat 23, and one end of the lifting mounting seat 23 is fixed to the first servo motor 24 by bolts; the output shaft of the first servo motor 24 is coaxially connected to the bidirectional lead screw 25, and the bidirectional lead screw 25 is arranged parallel to the horizontal slider 22; the lead screw nut 26 is threaded onto the bidirectional lead screw 25, and its bottom is fixed to the vertical lifting arm 27 by bolts; vertical guide columns 28 are arranged parallel on both sides of the vertical lifting arm 27, and the upper and lower ends of the vertical guide columns 28 are fixed to the lifting mounting seat 23 and the top of the frame 1 by bolts respectively; the bottom end of the vertical lifting arm 27 is connected to the cabin connecting block 29 by bolts, and the cabin connecting block 29 is bolted to the top of the dustproof powder spraying cabin 4.

[0017] Please see Figure 3 The dustproof powder spraying chamber 4 is a rectangular sealed box structure: the inlet end of the sealed box 41 has a glass inlet groove 42 and the outlet end has a glass outlet groove 43. The inlet end is connected to the output end of the transmission mechanism 6. The bottom of the sealed box 41 is fixed with an inverted conical powder collection trough 44, and its bottom is connected to the powder circulation mechanism 5 through a pipe. The inner wall of the outlet end is connected to the powder scraper bracket 451 by bolts. The powder scraper bracket 451 fixes the wear-resistant powder scraper 452, and the wear-resistant powder scraper 452 is arranged perpendicular to the glass transmission direction.

[0018] Please see Figure 6 The powder spraying mechanism 3 is integrated into the sealed housing 41: the multi-nozzle array nozzle 31 is fixed to the inner wall of the inlet end of the sealed housing 41 by bolts, and its back is reinforced by welding the nozzle mounting plate 32; the rotary dispersion module 33 is fixed to the bottom of the sealed housing 41 and located on one side of the multi-nozzle array nozzle 31; two sets of auxiliary pressing modules 34 are symmetrically arranged along the glass conveying direction, the pressing wheel bracket 341 of each set of auxiliary pressing modules 34 is fixed to the bottom of the sealed housing 41, the pressing wheel shaft 342 is rotatably connected to the pressing wheel bracket 341, the elastic pressing wheel 343 is sleeved on the pressing wheel shaft 342, and the outer surface is covered with a polyurethane anti-slip layer; the powder hopper 35 is fixed to the bottom of the sealed housing 41, and its powder outlet is connected to the powder inlet of the multi-nozzle array nozzle 31 through the powder conveying pump 36; the powder outlet of the multi-nozzle array nozzle 31 is connected to the powder inlet of the rotary dispersion module 33 through the powder guiding hose 37.

[0019] In the powder circulation mechanism 5, the recovery hopper 51 is fixed directly above the bottom of the inverted conical powder collection tank 44, and the inner wall is coated with a smooth polytetrafluoroethylene coating; the cyclone separator 52 is fixed at the top of the recovery hopper 51, and its inlet is connected to the bottom of the recovery hopper 51; one end of the recovery pipe 53 is connected to the outlet of the cyclone separator 52, and the other end extends to the outside of the frame 1 and is connected to the powder box 54.

[0020] The transmission mechanism 6 is fixed to the bottom of the frame 1: the transmission belt support 61 is fixed to the bottom of the frame 1 by bolts, and several parallel transmission rollers 62 are rotatably connected to it; the transmission motor 63 is fixed to one side of the transmission belt support 61, and the output shaft is coaxially connected to one of the transmission rollers 62 through a coupling, driving the transmission roller 62 to rotate and transport the glass.

[0021] During operation, the transmission mechanism 6 transports the glass to the inlet of the dustproof powder spraying chamber 4, and the lifting and adjusting mechanism 2 drives the dustproof powder spraying chamber 4 to descend to the set height; the multi-nozzle array nozzles 31 of the powder spraying mechanism 3 spray powder, the rotating dispersion module 33 disperses the powder, and the elastic pressing wheel 343 of the auxiliary pressing module 34 presses the glass to prevent displacement; when the glass exits the chamber, the powder scraping component 45 scrapes off the excess powder; the excess powder falls into the inverted conical powder collection tank 44, and after being separated by the recovery hopper 51 and the cyclone separator 52, the clean powder enters the powder box 54 for recycling.

[0022] Example 2: High-precision thin glass powder spraying device This embodiment is for ultra-thin glass with a thickness of 0.5-3mm, and mainly adjusts the parameters of the lifting adjustment mechanism 2 and the auxiliary pressing module 34: In the lifting adjustment mechanism 2, the bidirectional lead screw 25 adopts a high-precision ball screw, the first servo motor 24 is replaced with a stepper motor, and the encoder is used to achieve a height adjustment accuracy of ±0.05mm; the surface of the vertical guide column 28 is polished and chrome-plated to reduce the coefficient of friction.

[0023] The hardness of the polyurethane layer of the elastic clamping wheel 343 in the auxiliary clamping module 34 is adjusted from Shore A85 to Shore A70 to reduce the pressure on the thin glass and avoid cracking; the clamping wheel bracket 341 is equipped with an elastic buffer pad to further reduce rigid impact.

[0024] The remaining structure is the same as in Example 1, and it is suitable for precision powder coating of ultra-thin glass, with coating thickness deviation controllable within ±3μm.

[0025] Example 3: High-speed production glass powder coating device This embodiment is used for a production capacity improvement scenario, focusing on optimizing the conveying mechanism 6 and the powder spraying mechanism 3: In the transmission mechanism 6, the number of transmission rollers 62 is increased from 8 to 12, and the spacing is reduced to 150mm, which improves the stability of glass conveying; the power of the transmission motor 63 is increased by 30%, and the speed is increased to 120rpm, realizing high-speed transmission of glass with a linear speed of 1.5m / min.

[0026] The number of nozzles 31 in the multi-nozzle array of the powder spraying mechanism 3 has been increased from 12 in a single row to 24 in a double row, and the nozzle spacing has been increased to 20mm to expand the coverage width of a single powder spraying. The rotary dispersion module 33 has been replaced with a high-frequency vibrating dispersion disc with a vibration frequency of 50Hz to accelerate powder dispersion and meet the requirements of high-speed transmission.

[0027] The rest of the structure is the same as in Example 1, which can meet the requirement of uniform powder spraying at a linear velocity of 1.5m / min, and the production capacity is increased by 50% compared with the standard type.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A glass powder spraying device with a row-and-column multi-nozzle array, characterized in that, The system includes a frame (1), a lifting and adjusting mechanism (2), a powder spraying mechanism (3), a dustproof powder spraying chamber (4), a powder circulation mechanism (5), and a transmission mechanism (6). The transmission mechanism (6) is located at the bottom of the frame (1) and is used to transport the glass to be powder sprayed. The lifting and adjusting mechanism (2) is fixed to the top of the frame (1), and its output end is connected to the dustproof powder spraying chamber (4) to adjust the vertical distance between the dustproof powder spraying chamber (4) and the glass. The dustproof powder spraying chamber (4) is a sealed box structure, which integrates the powder spraying mechanism (3) and the auxiliary pressing module (34) inside. The top two sides are fixedly connected to the lifting and adjusting mechanism (2). The powder circulation mechanism (5) is located at the bottom of the dustproof powder spraying chamber (4) and is used to recover excess powder and recycle it through separation.

2. The glass powder spraying device with a row and column multi-nozzle array according to claim 1, characterized in that, The lifting adjustment mechanism (2) includes a horizontal guide rail base (21) fixed to the top of the frame (1), a horizontal slider (22) slidably connected to the top surface of the horizontal guide rail base (21), a lifting mounting seat (23) fixed to the top of the horizontal slider (22), a first servo motor (24) fixed to one end of the lifting mounting seat (23), a bidirectional lead screw (25) coaxially connected to the output shaft of the first servo motor (24), a lead screw nut (26) threaded onto the bidirectional lead screw (25), a vertical lifting arm (27) fixed to the bottom of the lead screw nut (26), and a parallel arrangement on the vertical lifting arm (27). 27) Vertical guide columns (28) on both sides and a cabin connecting block (29) fixed at the bottom of the vertical lifting arm (27); the upper and lower ends of the vertical guide column (28) are fixed to the top of the lifting mounting seat (23) and the frame (1) respectively; the cabin connecting block (29) is bolted to the top of the dustproof powder spraying cabin (4); the first servo motor (24) drives the bidirectional screw (25) to rotate, and through the guide cooperation between the screw nut (26) and the vertical guide column (28), the vertical lifting arm (27) is driven to rise and fall vertically, and then the height of the dustproof powder spraying cabin (4) is adjusted through the cabin connecting block (29).

3. The glass powder spraying device with a row and column multi-nozzle array according to claim 1, characterized in that, The dustproof powder spraying chamber (4) includes a sealed box (41), a glass inlet groove (42) opened at the inlet end of the sealed box (41), a glass outlet groove (43) opened at the outlet end of the sealed box (41), an inverted conical powder collection groove (44) fixed to the bottom of the sealed box (41), and a powder scraping assembly (45) inclinedly arranged on the inner wall of the outlet end of the sealed box (41); the bottom of the inverted conical powder collection groove (44) is connected to the powder circulation mechanism (5); the powder scraping assembly (45) includes a powder scraping plate bracket (451) bolted to the inner wall of the outlet end of the sealed box (41) and a wear-resistant powder scraping plate (452) fixed on the powder scraping plate bracket (451), and the wear-resistant powder scraping plate (452) is arranged perpendicular to the glass conveying direction.

4. The glass powder spraying device with a row and column multi-nozzle array according to claim 3, characterized in that, The powder spraying mechanism (3) includes a multi-nozzle array nozzle (31) fixed to the inner wall of the inlet end of the sealed box (41), a nozzle mounting plate (32) welded to the back of the multi-nozzle array nozzle (31), a rotating dispersion module (33) fixed to the bottom of the sealed box (41), two sets of auxiliary pressing modules (34) symmetrically arranged in the sealed box (41) along the glass conveying direction, a powder hopper (35) fixed to the bottom of the sealed box (41), a powder conveying pump (36) connected to the powder outlet of the powder hopper (35) and the powder inlet of the multi-nozzle array nozzle (31), and a powder guiding hose (37) connected to the powder outlet of the multi-nozzle array nozzle (31) and the powder inlet of the rotating dispersion module (33).

5. A glass powder spraying device with a row and column multi-nozzle array according to claim 4, characterized in that, The auxiliary pressing module (34) includes a pressing wheel bracket (341) fixed to the bottom of the sealed box (41), a pressing wheel shaft (342) rotatably connected to the pressing wheel bracket (341), and an elastic pressing wheel (343) sleeved on the pressing wheel shaft (342). The outer surface of the elastic pressing wheel (343) is covered with a polyurethane anti-slip layer, and two sets are symmetrically arranged along the glass transmission direction to press the glass and prevent it from shifting during transmission.

6. The glass powder spraying device with a row and column multi-nozzle array according to claim 4, characterized in that, The powder recycling mechanism (5) includes an inverted funnel-shaped recycling hopper (51) fixed directly above the bottom of the inverted conical powder collection tank (44), a cyclone separator (52) fixed at the top of the recycling hopper (51), a recycling pipe (53) connected to the powder outlet of the cyclone separator (52), and a powder box (54) fixed at the end of the recycling pipe (53). The inner wall of the recycling hopper (51) is coated with a smooth polytetrafluoroethylene coating. The inlet of the cyclone separator (52) is connected to the bottom of the recycling hopper (51), and the outlet transports the separated clean powder to the powder box (54) for recycling through the recycling pipe (53).

7. The glass powder spraying device with a row and column multi-nozzle array according to claim 1, characterized in that, The transmission mechanism (6) includes a transmission belt support (61) fixed to the bottom of the frame (1), a plurality of parallel transmission rollers (62) rotatably connected to the transmission belt support (61), and a transmission motor (63) fixed to one side of the transmission belt support (61); the output shaft of the transmission motor (63) is coaxially connected to one of the transmission rollers (62) through a coupling, driving the transmission roller (62) to rotate to transport glass.

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